:root {
    --color-background: #0b0c10;
    --color-on-background: #ffffff;
    --color-surface: rgba(18, 20, 28, 0.75);
    --color-surface-card: #181a26;
    --color-surface-hover: #222536;
    --color-background-hover: #222536;
    --color-on-background-hover: #ffffff;
    --color-on-background-secondary: #94a3b8;
    --color-bg-alt: #181a26;
    --color-text: #ffffff;
    --color-text-muted: #94a3b8;
    --color-primary: #8d2be2;
    --color-primary-hover: #a83dff;
    --color-primary-glow: rgba(168, 61, 255, 0.35);
    --color-primary-disabled: #1f213c;
    --color-on-primary: #ffffff;
    --color-on-primary-secondary: rgba(255, 255, 255, 0.85);
    --color-error: #ef4444;
    --color-on-error: #ffffff;
    --color-success: #10b981;
    --color-on-success: #ffffff;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-glow: rgba(168, 61, 255, 0.4);
    --color-podium-gold: #ffd166;
    --color-podium-silver: #e0e1dd;
    --color-podium-bronze: #cd7f32;
    --glass-blur: blur(16px);
}

html:not(.dark),
body:not(.dark) {
    color-scheme: light;
    --color-background: #f8f9fc;
    --color-on-background: #0f172a;
    --color-surface: rgba(255, 255, 255, 0.85);
    --color-surface-card: #ffffff;
    --color-surface-hover: #f1f4fb;
    --color-background-hover: #f1f4fb;
    --color-on-background-hover: #0f172a;
    --color-on-background-secondary: #64748b;
    --color-bg-alt: #f1f4fb;
    --color-text: #0f172a;
    --color-text-muted: #64748b;
    --color-primary: #8d2be2;
    --color-primary-hover: #a83dff;
    --color-primary-glow: rgba(141, 43, 226, 0.25);
    --color-primary-disabled: #e2e8f0;
    --color-on-primary: #ffffff;
    --color-on-primary-secondary: rgba(255, 255, 255, 0.9);
    --color-error: #ef4444;
    --color-on-error: #ffffff;
    --color-success: #10b981;
    --color-on-success: #ffffff;
    --color-border: rgba(15, 23, 42, 0.1);
    --color-border-glow: rgba(141, 43, 226, 0.4);
    --color-podium-gold: #d97706;
    --color-podium-silver: #64748b;
    --color-podium-bronze: #b45309;
}

html.dark,
body.dark {
    color-scheme: dark;
    --color-background: #0b0c10;
    --color-on-background: #ffffff;
    --color-surface: rgba(18, 20, 28, 0.75);
    --color-surface-card: #181a26;
    --color-surface-hover: #222536;
    --color-background-hover: #222536;
    --color-on-background-hover: #ffffff;
    --color-on-background-secondary: #94a3b8;
    --color-bg-alt: #181a26;
    --color-text: #ffffff;
    --color-text-muted: #94a3b8;
    --color-primary: #8d2be2;
    --color-primary-hover: #a83dff;
    --color-primary-glow: rgba(168, 61, 255, 0.35);
    --color-primary-disabled: #1f213c;
    --color-on-primary: #ffffff;
    --color-on-primary-secondary: rgba(255, 255, 255, 0.85);
    --color-error: #ef4444;
    --color-on-error: #ffffff;
    --color-success: #10b981;
    --color-on-success: #ffffff;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-glow: rgba(168, 61, 255, 0.4);
    --color-podium-gold: #ffd166;
    --color-podium-silver: #e0e1dd;
    --color-podium-bronze: #cd7f32;
}

/* Browser surfaces & polish */
::selection {
    background-color: var(--color-primary);
    color: var(--color-on-primary);
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

html {
    scrollbar-color: rgba(141, 43, 226, 0.4) transparent;
    scrollbar-width: thin;
}

html.dark {
    scrollbar-color: rgba(168, 61, 255, 0.5) transparent;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(141, 43, 226, 0.35);
    border-radius: 9999px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

html.dark ::-webkit-scrollbar-thumb,
body.dark ::-webkit-scrollbar-thumb {
    background: rgba(168, 61, 255, 0.45);
}

html.dark ::-webkit-scrollbar-thumb:hover,
body.dark ::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-hover);
}

html,
body {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
    margin: 0;
    font-family: "Lexend Deca", sans-serif;
    font-variant-numeric: tabular-nums;
    background-color: var(--color-background);
    color: var(--color-on-background);
    background-image: 
        radial-gradient(circle at 15% 15%, rgba(141, 43, 226, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 85% 85%, rgba(168, 61, 255, 0.05) 0%, transparent 40%);
    background-attachment: fixed;
}

header {
    background-color: var(--color-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

main {
    background-color: transparent;
    color: var(--color-on-background);
    display: grid;
    grid-template-columns: minmax(18rem, 1.2fr) minmax(22rem, 2.2fr) minmax(18rem, 1.1fr);
    column-gap: 2rem;
    height: 0;
    flex: 1;
    grid-template-rows: minmax(0, 1fr);
    max-width: 1700px;
    margin: 0 auto;
    width: 100%;
}

main > div {
    overflow-y: auto;
}

.spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    grid-column: span 3;
}

input[type="checkbox"] {
    height: 1.25rem;
    width: 1.25rem;
    cursor: pointer;
    margin: 0;
    accent-color: var(--color-primary);
}

/* Glass Card Utility */
.glass-panel {
    background: var(--color-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    border-radius: 12px;
}

/* Toast Notifications */
.toast-msg {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--color-surface-card);
    color: var(--color-text);
    border: 1px solid var(--color-border-glow);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    padding: 12px 20px;
    border-radius: 12px;
    font-size: 14.2857142857px;
    font-weight: 500;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: toastSlideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes toastSlideUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive adjustments */
@media screen and (max-width: 1080px) {
    main {
        display: flex;
        flex-direction: column;
        height: auto;
        overflow-y: auto;
        padding-inline: 1rem;
    }

    main > div {
        overflow-y: visible;
    }
}